Brightness modulation circuit

Details Brightness modulation circuit Brightness modulation circuit

H - Electricity

04

N

H04N 5/57 (2006.01)

Patent

CA 2111422

A brightness modulation circuit for a video display unit has a brightness level adjusting circuit including a memory (13) for storing data representing a suitable degree of brightness modulation corresponding to various types of uses of television systems, and a horizontal digital/analog converter (6) and a vertical digital/analog converter (7) issuing amplitude-modulated parabolic waves, which control the degree of the brightness modulation using the data read from the memory (13).

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